DMH

Nonlinear dynamic hysteresis of nanomagnetic particles with application to data storage and medical hyperthermia

 Coordinatore UNIVERSITE DE PERPIGNAN 

 Organization address address: AVENUE PAUL ALDUY 52
city: PERPIGNAN
postcode: 66860

contact info
Titolo: Ms.
Nome: Solange
Cognome: Pinol
Email: send email
Telefono: 33468662067
Fax: 33468662246

 Nazionalità Coordinatore France [FR]
 Totale costo 47˙500 €
 EC contributo 47˙500 €
 Programma FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call FP7-PEOPLE-2011-IRSES
 Funding Scheme MC-IRSES
 Anno di inizio 2012
 Periodo (anno-mese-giorno) 2012-04-01   -   2015-03-31

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    UNIVERSITE DE PERPIGNAN

 Organization address address: AVENUE PAUL ALDUY 52
city: PERPIGNAN
postcode: 66860

contact info
Titolo: Ms.
Nome: Solange
Cognome: Pinol
Email: send email
Telefono: 33468662067
Fax: 33468662246

FR (PERPIGNAN) coordinator 34˙200.00
2    THE PROVOST, FELLOWS, FOUNDATION SCHOLARS & THE OTHER MEMBERS OF BOARD OF THE COLLEGE OF THE HOLY & UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN

 Organization address address: College Green -
city: DUBLIN
postcode: 2

contact info
Titolo: Ms.
Nome: Deirdre
Cognome: Savage
Email: send email
Telefono: 35318961942
Fax: 35317071633

IE (DUBLIN) participant 13˙300.00

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

hyperthermia    analytical    numerical    data    dissipation    generation    storage    absorption    magnetic    resonance    internal    moment    external    cancer    treatment    dmh    magnetodynamics    precession    heat    nanoparticles   

 Obiettivo del progetto (Objective)

'The subject of the project is the magnetodynamics of single-domain ferromagnetic nanoparticles driven by strong ac magnetic fields. The phenomenon of prime interest here is dynamic magnetic hysteresis (DMH) . The main important applications of DMH are (i) magnetic moment switching (under pulsed fields) in magnetic data storage and (ii) heat generation in magnetically induced hyperthermia (medical as well as other applications). Nowdays local magnetic hyperthermia is one of the most promising approaches in addition to chemical and radiological methods for cancer treatment. Unfortunately, the progress is hampered by the lack of reliable understanding of the laws governing the interplay between internal (magnetic relaxation) and external (viscous dissipation due to mechanical rotation) losses and their joint effect on heat generation. There also exists a 'no-man land' between two limiting frameworks: (i) natural (intrinsic) magnetic resonance where the magnetic moment precession is due to the internal field and (ii) the standard (Zeeman) magnetic resonance where the main factor in the precession is dominated by a strong external field while the internal field is merely a perturbation. In the second case, substantial increase in the absorption can be achieved which is important for hyperthermia. We are going to study magnetodynamics and energy absorption in solid and liquid suspensions of magnetic nanoparticles by developing analytical and numerical techniques for treating effects of dissipation to the surrounding heat bath in DMH. The results obtained from analytical and numerical solutions of the Gilbert-Landau-LIfshitz equation augmented by a random field term will be compared with available experimental observations.'

Introduzione (Teaser)

EU-funded scientists are shedding light on the behaviour of nanoparticles in strong alternating magnetic fields. Increased understanding will advance areas including magnetic data storage and cancer treatment.

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